From Grade F to A+: The Ultimate HTTP Security Headers Guide

Nyra Amsi — Fri, 03 Apr 2026 07:16:53 +0000

If you deploy a standard Nginx or Apache server today, it is insecure by default. While your firewall might be strong, your browser communication is wide open to MIME Sniffing, Clickjacking, and XSS attacks.

At iRexta, we audited hundreds of servers only to find most running on a "Grade F" security score. Here is how you fix it using the "Big 6" Security Headers.

🛡️ The Security Checklist

HSTS (Strict-Transport-Security): Forces HTTPS. No more SSL stripping.
CSP (Content-Security-Policy): The primary defense against XSS.
Permissions-Policy: Explicitly disables access to Camera/Mic/Geo APIs.
X-Content-Type-Options: Stops the browser from "guessing" file types (MIME sniffing).
X-Frame-Options: Prevents your site from being framed (Anti-Clickjacking).
Referrer-Policy: Protects user privacy during navigation.

🛠️ Nginx Implementation Snippet

Add this to your server block to harden your iRexta Dedicated Server instantly:

# 1. Force HTTPS
add_header Strict-Transport-Security "max-age=31536000; includeSubDomains; preload" always;

# 2. Anti-Sniffing & Clickjacking
add_header X-Content-Type-Options "nosniff" always;
add_header X-Frame-Options "SAMEORIGIN" always;

# 3. Privacy & API Lockdown
add_header Referrer-Policy "strict-origin-when-cross-origin" always;
add_header Permissions-Policy "geolocation=(), microphone=(), camera=()" always;

# 4. CSP (Start with Report-Only)
add_header Content-Security-Policy-Report-Only "default-src 'self'; script-src 'self' [https://www.google-analytics.com](https://www.google-analytics.com); style-src 'self' 'unsafe-inline' [https://fonts.googleapis.com](https://fonts.googleapis.com); report-uri [https://your-endpoint.com/csp-report](https://your-endpoint.com/csp-report);" always;

The "Don't Break Your Site" Rule

The most common mistake is enabling a strict CSP and seeing your Google Fonts or Analytics die instantly.

The Fix: Use Content-Security-Policy-Report-Only first. Monitor your logs for a week, whitelist your legitimate scripts, and then switch to the full enforced policy.

Verify Your Grade
Once configured, head over to SecurityHeaders.com and scan your domain. Seeing that Grade A+ isn't just for show—it's enterprise-grade hardening.

Need the full guide for Apache or IIS? Check out our Original Security Headers Tutorial on the iRexta blog.

Ready for Hardened Infrastructure? Explore iRexta Dedicated Servers and take full control of your stack.

Stop Falling for Unlimited Hosting: A Developer's Guide to Bandwidth vs. Data Transfer

Nyra Amsi — Fri, 03 Apr 2026 06:15:53 +0000

Ever had a "10TB transfer plan" but your video streaming app still lagged for users? You likely hit a Bandwidth bottleneck, not a data cap.

In the world of Bare Metal, "Unlimited" is often a marketing mask for shared, throttled ports. Let's break down the math every dev should know before picking a server.

The Pipe Analogy

Bandwidth (Port Speed): The WIDTH of the pipe (Mbps/Gbps). It dictates how much data flows in one second.
Data Transfer: The VOLUME of water flowing through that pipe over a month (GB/TB).
The iRexta Rule: We use Unmetered Bare Metal. If you have a 1Gbps port, it's yours 24/7. No shared pipes.

The Math: What Port Speed Do You Actually Need?

Don't guess your infrastructure needs. Calculate it:

Required Speed (Mbps) = (Avg Page/Stream Size in Mb * Concurrent Users)

Example: 5 Mbps stream * 500 concurrent viewers = 2.5 Gbps required.

If you are on a standard 1Gbps port, your users will experience buffering instantly. This is where LACP (Link Aggregation) or a 10Gbps Uplink becomes mandatory.

Pro-Tip: Optimize with Private Networking (VLAN)

Advanced devs save public bandwidth for customers and use Private Networking for internal tasks:

Ingress: Data coming IN (usually free at iRexta).
VLAN: Use eth1 for DB syncs and backups. It's unmetered and doesn't touch your public 1Gbps/10Gbps pipe.

What’s your current network setup? Are you running on shared "Unlimited" pipes or dedicated unmetered ports? Let's discuss in the comments! 👇

Originally published on iRexta Blog

Forem: Nyra Amsi